Background One injury mechanism in ice hockey is impact with the boards. We investigated whether more flexible hockey boards would provide less biomechanical loading on impact than did existing ...

(a) Mechanism for the feel of softness by a human fingertip. (b) Structure of the indentor. The two sensors are integrated on the sphere surface. (c) Multi-segment displacement control of the indentor ...

Economic efficiency and minimizing labor displacement may be mutually unattainable goals in regional air-pollution control planning. This paper develops a model in which pollution-control methods are ...